Hybrid car and an operating method therefor
AssigneeMitsubishi Jidosha Kogyo Kabushiki Kaisha
InventorMasato Yoshida
Life of this patent
Estimating the term…
Abstract
A hybrid car comprises an electric motor for driving the vehicle, an internal combustion engine for power generation, and auxiliary machineries such as an air conditioner. If an air conditioner operating switch is turned on while the hybrid car is running, engine operation is started after the temperature of a catalyst is increased to a predetermined value, and the air conditioner for use as an auxiliary machinery is driven by the engine. The hybrid car is improved in cruising range and power performances as compared with an arrangement in which the auxiliary machineries are driven by means of a battery which is connected to the electric motor.
Claims17
A hybrid car comprising:
- an electric motor for driving the hybrid car;
- a battery for supplying electric power to said electric motor;
- a generator for charging said battery;
- an internal combustion engine operatively isolated from said electric motor and used to drive said generator;
- an auxiliary machinery driven by means of said internal combustion engine;
- first discriminating means for discriminating an operating state of the hybrid car;
- second discriminating means for discriminating a charged state of said battery;
- third discriminating means for discriminating presence or absence of a request for the drive of said auxiliary machinery;
- and
- a controller for controlling an operating state of said internal combustion engine in response to at least one result from decisions on said operating state of the hybrid car by said first discriminating means, said charged state of said battery by said second discriminating means, and the presence or absence of said request for the drive of said auxiliary machinery by said third discriminating means.
An operating method for a hybrid car which has an electric motor for driving the hybrid car, a battery for supplying electric power to the electric motor, a generator for charging the battery, an internal combustion engine operatively isolated from the electric motor and used to drive the generator, and an auxiliary machinery driven by means of the internal combustion engine, the method comprising steps of:
- (a) discriminating an operating state of the hybrid car;
- (b) discriminating a charged state of the battery;
- (c) discriminating presence or absence of a request for the drive of the auxiliary machinery;
- and
- (d) controlling an operating state of the internal combustion engine by means of a controller in response to at least one result from decisions on said operating state of the hybrid car discriminated at said step (a), said charged state of the battery discriminated at said step (b), and the presence or absence of the request for the auxiliary machinery drive discriminated at said step (c).
A hybrid car comprising:
- an electric motor for driving the hybrid car;
- a battery for supplying electric power to said electric motor;
- a generator for charging said battery;
- an internal combustion engine operatively isolated from said electric motor and used to drive said generator;
- an auxiliary machinery driven by means of said internal combustion engine;
- first discriminating means for discriminating an operating state of the hybrid car;
- second discriminating means for discriminating a charged state of said battery;
- third discriminating means for discriminating presence or absence of a request for the drive of said auxiliary machinery;
- and
- a controller for controlling an operating state of said internal combustion engine in response to at least one result from decisions on said operating state of the hybrid car by said first discriminating means, said charged state of said battery by said second discriminating means, and the presence or absence of said request for the drive of said auxiliary machinery by said third discriminating means, and said controller adjusting the internal combustion engine to an operating state such that the fuel consumption of the internal combustion engine is reduced when the auxiliary machinery drive is discriminated to be requested.
A hybrid car comprising:
- an electric motor for driving the hybrid car;
- a battery for supplying electric power to said electric motor;
- a generator for charging said battery;
- an internal combustion engine operatively isolated from said electric motor and used to drive said generator;
- an auxiliary machinery driven by said internal combustion engine;
- first discriminating means for discriminating an operating state of the hybrid car;
- second discriminating means for discriminating a charged state of said battery;
- third discriminating means for discriminating presence or absence of a request for the drive of said auxiliary machinery;
- and
- a controller for controlling an operating state of said internal combustion engine in response to at least one result from decisions on said operating state of the hybrid car by said first discriminating means, said charged state of said battery by said second discriminating means, and the presence or absence of said request for the drive of said auxiliary machinery by said third discriminating means, said controller keeping said internal combustion engine in a stopped state when said operating state of said battery is discriminated as not needing to be charged, adjusting said internal combustion engine to a high-speed, high-load state when said operating state of said battery is discriminated as being insufficiently charged and driving said internal combustion engine in a low-speed, low-load state when said auxiliary machinery drive is discriminated as being requested.
An operating method for a hybrid car which has an electric motor for driving the hybrid car, a battery for supplying electric power to the electric motor, a generator for charging the battery, an internal combustion engine operatively isolated from the electric motor and used to drive the generator, and an auxiliary machinery driven by means of the internal combustion engine, the method comprising steps of:
- (a) discriminating an operating state of the hybrid car;
- (b) discriminating a charged state of the battery;
- (c) discriminating presence or absence of a request for the drive of the auxiliary machinery;
- and
- (d) controlling an operating state of the internal combustion engine by means of a controller in response to at least one result from decisions on said operating state of the hybrid car discriminated at said step (a), said charged state of the battery discriminated at said step (b), and the presence or absence of the request for the auxiliary machinery drive discriminated at said step (c).
An operating method for a hybrid car which has an electric motor for driving the hybrid car, a battery for supplying electric power to the electric motor, a generator for charging the battery, an internal combustion engine operatively isolated from the electric motor and used to drive the generator, and an auxiliary machinery driven by means of the internal combustion engine, the method comprising the steps of:
- (a) discriminating an operating state of the hybrid car;
- (b) discriminating a charged state of the battery;
- (c) discriminating presence or absence of a request for the drive of the auxiliary machinery;
- and
- (d) controlling an operating state of the internal combustion engine by means of a controller in response to at least one result from decisions on said operating state of the hybrid car discriminated at said step (a), said charged state of the battery discriminated at said step (b), and the presence or absence of the request for the auxiliary machinery drive discriminated at said step (c), said step (d) including the steps of,
- (d) (1) keeping the internal combustion engine in a stopped state when said operating state of the battery is discriminated as not needing to be charged,
- (d) (2) adjusting the internal combustion engine to a high-speed, high-load state when said operating state of the battery is discriminated as being insufficiently charged, and
- (d) (3) driving the internal combustion engine in a low-speed, low-load state when the auxiliary machinery drive is discriminated as being requested.
Dependencies are inferred from the claim text.